So, the other day I went to get a shower, and the water was scolding hot! I had to have it turned as far cold as I could get it, for it to be bearable. The next day, the water was normal. Now today, the water is cold! If I have it all the way hot, it is barely warm. I don't know what to do! I am a girl and I don't know MUCH about fixing things, and my landlord isn't home, and I need to shower! On top of the water heater, there are some pipes coming out of it, and on top of one of the pipes, there is a red valve. I haven't touched anything at all lately so I dont know what it could be!